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J P. I. DATIUHY,

JET GONDENSER.

No.61,17. Patented Jan. 15, 1867,

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J. P. F. DATIGHY, OF WEST HOBOKEN, ASSIGNOR TOHIMSELF AND J H.

BONN, OF HOBOKEN, NEW JERSEY.

Letters Patent No. 61,167, dated Janna-1y 15, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, J. P. F. DATIOHY, of West Hoboken, in the county of Hudson, and State of New Jersey, have invented a new and improved Condenser; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification.

The drawing represents a vertical central section of this invention.

This invention relates to an improvement in that class of condensers on which a patent was granted to me August 30, 1864, and which is based on the' application of water so as to condense the exhaust steam of an engine and return the same to the boiler.

My present improvement will be readily understood from the following description.

R'represents my condenser, which is composed of three compartments, A, B, and F, which are separated from each other by horizontal partitions, as clearly shown in the drawing. The middle division, A, receives the exhaust steam, which then passes through the check-valves a a into the upper division, B, where the condense.- tion iseffected by a jet of cold water admitted into said division or compartment through the cock I) and the perforated box or rose 0. The product of condensation, together with the condensing water, passes through the pipe E into the lower compartment, F, whence'it is drawn into the boiler through the pipes G and K by means of the ordinary feed-pump which is used with every steam engineer steam generator. The pipe G also communicates with the compartment or chamber A by means of the pipe I, which is provided with a checkvalve, H, and a stop-cock, J. By this pipe all the water'which may accumulate in the compartment A from condensation of steam is drawn out and forced into the boiler. Ih case the water from the compartment F is not needed, it discharges through the overflow pipe L. To draw from the chamber B all air and whatever steam may not have been condensed, there is placed on top of said chamber a valve, M, worked by the air-pump in low-pressure engines. By this air-pump nearly all the air and non-condensed steam draw'n oil, and at the same time a jet of water is sucked in through the pipe E, which, when brought in contact with the remaining steam, condenses the same. The water resulting from this condensation, together with the heated air, is forced into a tank, from which the water may be pumped into the boiler. In the middle chamber, A, a vacuum is created by the valves :1 a and the air-pump connected with the valve M, and it serves to heat the feed-water for the boiler, so that a large percentage of fuel is saved. The condensation may be regulated at will by admitting a greater or smaller quantity of water into the rose C through the stop-cock D.

What I claim as new, and desire to secure by Letters Patent, is-- A condenser composed of three compartments A, B, F, valves a a, M, rose 0, and connecting pipes E, G, .I, all constructed and operating substantially as and for the purpose described.

The above specification of my invention signed by me this 9th day of July, 1866.

F. DATIOHY. Witnesses WM. F. MoNnm'r-s, W. Hsnrn. 

